将System::string转换为std::string时,std::string delete运算符中出现运行时异常

我正在使用 C++ cli 同时使用这两种解决方案 C# 和 C++ 密码

当我尝试转换时 System::String 到 std::string 每次运行时,我都会遇到以下运行时异常:

ucrtbased.dll!00007ffd9902b9b0()    Unknown
ucrtbased.dll!00007ffd9902eac5()    Unknown
MyApp.dll!operator delete(void * block) Line 21 C++
[Managed to Native Transition]  
MyApp.dll!std::_Deallocate(void* _Ptr, unsigned __int64 _Count, unsigned __int64 _Sz) Line 133  C++
MyApp.dll!std::allocator<char>::deallocate(char* _Ptr, unsigned __int64 _Count) Line 721    C++
MyApp.dll!std::_Wrap_alloc<std::allocator<char> >::deallocate(char* _Ptr, unsigned __int64 _Count) Line 988 C++
MyApp.dll!std::basic_string<char,std::char_traits<char>,std::allocator<char> >::_Tidy(bool _Built, unsigned __int64 _Newsize) Line 2260 C++
MyApp.dll!std::basic_string<char,std::char_traits<char>,std::allocator<char> >::=(std::basic_string<char,std::char_traits<char>,std::allocator<char> >& _Right) Line 934    C++
MyApp.dll!MyApp::DoStuff(System::String^ input) Line 59 C++

或者在没有调试器的情况下运行时:

我的代码,我尝试了两种选择,都导致了相同的崩溃:

选项1

void MyApp::DoStuff(System::String^ input) {
    msclr::interop::marshal_context context;
    std::string converted = context.marshal_as<const char*>(LicenseOEM);
}

选项2

std::string SystemToStd(System::String^ sys) {
    int len = sys->Length;
    char* buff = (char*)malloc((len + 1) * sizeof(char));
    for (int i = 0; i < sys->Length; i++) {
        buff[i] = sys[i];
    }
    buff[len] = '\0';
    std::string str = std::string(buff, len);
    free(buff);
    return str;
}

void MyApp::DoStuff(System::String^ input) {
    std::string converted = SystemToStd(LicenseOEM);
}